Question

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SolveQ8

Answer 1

Answer:

➡️ Work done = 2450 joule

➡️ Power = 612.5 watt

Step-by-step explanation:

Work done = energy

Energy = potential energy in this case.

PE = mgh

m = mass, g = acc due to gravity, h= height

P. E. = 50 ☓ 9.8 ☓ 5

P.E. = 50 ☓ 49

P.E. = 2450 joules.

Power = energy / time

Power = 2450/4

Power = 612.5 watt